# College chemistry

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The pH of blood is 7.4 and that of saliva is 6.4. what is the difference in pH between these two solutions? How much more Hydronium ion (H3O+) is in the saliva than in the blood.

I need a detailed answer with the formulas if you can. I have a hard time with chemestry

• College chemistry -

You're making this much harder than it is. Don't be intimidated by chemistry. The difference is 7.4-6.4 = 1.0, right?

To convert pH to H3O^+, use
pH = -log(H3O^+)
7.4 = -log(H3O^+) and
6.4 = -log(H3O^+).
Solve each for H3O^+ and subtract these two numbers to find how much more in one than the other.

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